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Screening of Axonal Degeneration in Carpal Tunnel Syndrome Using Ultrasonography and Nerve Conduction Studies
Published on: January 11, 2019
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Advanced Imaging Techniques of the Wrist
Andrew L Chang1, Hon J Yu1, Donald von Borstel2
11 Department of Radiological Sciences, University of California, Irvine, 101 The City Dr S, Rte 140, Orange, CA 92868.
AJR. American Journal of Roentgenology
|August 23, 2017
Summary
Recent wrist MRI advancements like T2/T1rho mapping and compressed sensing offer quantitative analysis for cartilage and TFCC degeneration. These techniques improve resolution and speed, aiding diagnosis of wrist injuries.
Area of Science:
- Radiology
- Magnetic Resonance Imaging
- Orthopedics
Background:
- Wrist MRI is crucial for diagnosing internal derangements.
- Traditional MRI techniques face limitations in resolution and speed.
- Advancements are needed for quantitative and detailed wrist imaging.
Purpose of the Study:
- To review technical aspects and clinical applications of novel wrist MRI techniques.
- To highlight advancements in quantitative imaging and anatomical resolution.
- To discuss the impact of these techniques on diagnosing wrist pathologies.
Main Methods:
- T2 and T1rho mapping for tissue characterization.
- Compressed sensing and parallel imaging for faster scans.
- Isotropic 3D imaging with driven equilibrium and variable-flip-angle sequences.
Main Results:
- Quantitative analysis of cartilage and triangular fibrocartilaginous complex (TFCC) degeneration.
- Improved resolution of complex wrist anatomy.
- Differentiation of degenerative from traumatic TFCC tears and enhanced chondromalacia evaluation.
Conclusions:
- Novel advancements in wrist MRI are rapidly emerging.
- Techniques like parallel imaging are already clinically integrated.
- Understanding these advancements maximizes their diagnostic utility in musculoskeletal imaging.
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